Washington Post columnist Marc Thiessen said Wednesday that in order for President Donald Trump to make progress in his denuclearization talks with North Korea, he must look dictator Kim Jong Un "right in the eye and say 'I'm not like my predecessors.'"

China claimed Wednesday that North Korea planned to denuclearize the Korean Peninsula with some conditions after an unprecedented visit from the dictator.

According to Chinese media, Kim visited China between Sunday and Wednesday. Trump praised the progress, tweeting that he is looking forward to his meeting.

Received message last night from XI JINPING of China that his meeting with KIM JONG UN went very well and that KIM looks forward to his meeting with me. In the meantime, and unfortunately, maximum sanctions and pressure must be maintained at all cost!

"The only way this is solved peacefully is if Kim Jong Un understands that Donald Trump actually means it when he says, 'I will not allow you to threaten an American city with a nuclear ICBM,'" Thiessen said.

Regarding China's progress in talks, White House Press Secretary Sarah Sanders said in a statement, "The United States remains in close contact with our allies South Korea and Japan. We see this development as further evidence that our campaign of maximum pressure is creating the appropriate atmosphere for dialogue with North Korea."

For years and through many administrations, everyone said that peace and the denuclearization of the Korean Peninsula was not even a small possibility. Now there is a good chance that Kim Jong Un will do what is right for his people and for humanity. Look forward to our meeting!

Fox Nation Is LIVE

Latest from Fox News Channel

Former Acting ICE Director Thomas Homan said Tuesday on "The Ingraham Angle" that if Republicans and Democrats in Congress closed "loopholes" in the law that allow for "catch and release" and other perceptively problematic situations, the migrant caravans would cease to exist.